ECON 110 Lecture 3: Ch. 8 - Long-run cost curves

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ECON 110 Full Course Notes
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Firm"s long-run costs substituting one good for another) along a production. In the long run (lr), there are no fixed factors. Firm can substitute one factor for another (just like consumer iso-quantity curve (or isoquant). Along an isoquant the same quantity is produced by using different input combinations. Caution: make sure you study the appendix to ch. 8 with its numerical example if you want to understand the long run choices open to firm. In lr, as there are no fixed factors, mowing firm can use different input combinations: cows or sheep, garden shears, manual mower, regular mower, professional mower with. L traction and steering: tractor-mower, lawn-roomba (i. e. a robotic mower). If, instead of discrete bundles in the example, one draws a smooth isoquant (just like the indifference curves!) then the least-cost combination of inputs (b0) to produce y0 is the optimal. B5 slope = - . 5 = - 10/20.

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